:root[data-theme="dark"] {
  --nf-bg: #0b1220;
  --nf-text: #e9eef6;
}
:root[data-theme="light"] {
  --nf-bg: #ffffff;
  --nf-text: #0b1220;
}
.site-footer a:focus, .site-footer button:focus {
  outline: 3px solid rgba(13,110,253,0.25);
  outline-offset: 2px;
}